BITOP bug when called against non existing keys fixed.

[redis.git] / tests / unit / bitops.tcl

diff --git a/tests/unit/bitops.tcl b/tests/unit/bitops.tcl
index b7a76abb12921fcca06376700b9b80b369cce55e..0e3403bfe1818ee043788127f6cf430902418497 100644 (file)
--- a/tests/unit/bitops.tcl
+++ b/tests/unit/bitops.tcl
@@ -24,13 +24,13 @@ proc simulate_bit_op {op args} {
     set out {}
     for {set x 0} {$x < $maxlen} {incr x} {
         set bit [string range $b(0) $x $x]
+        if {$op eq {not}} {set bit [expr {!$bit}]}
         for {set j 1} {$j < $count} {incr j} {
             set bit2 [string range $b($j) $x $x]
             switch $op {
                 and {set bit [expr {$bit & $bit2}]}
                 or  {set bit [expr {$bit | $bit2}]}
                 xor {set bit [expr {$bit ^ $bit2}]}
-                not {set bit [expr {!$bit}]}
             }
         }
         append out $bit
@@ -135,6 +135,16 @@ start_server {tags {"bitops"}} {
         }
     }
 
+    test {BITOP NOT fuzzing} {
+        for {set i 0} {$i < 10} {incr i} {
+            r flushall
+            set str [randstring 0 1000]
+            r set str $str
+            r bitop not target str
+            assert_equal [r get target] [simulate_bit_op not $str]
+        }
+    }
+
     test {BITOP with integer encoded source objects} {
         r set a 1
         r set b 2
@@ -150,4 +160,10 @@ start_server {tags {"bitops"}} {
         catch {r bitop xor dest a b c d} e
         set e
     } {*ERR*}
+
+    test {BITOP with empty string after non empty string (issue #529)} {
+        r flushdb
+        r set a "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
+        r bitop or x a b
+    } {32}
 }